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Finding the Fourth Proportional to 357,439.92, 493,267.68 and 196,305.36

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Solution

The fourth proportional to 357,439.92, 493,267.68 and 196,305.36 is: 270,901.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,439.92 : 493,267.68 = 196,305.36 : x
  2. Step 2: Convert to fraction form
    357,439.92/493,267.68 = 196,305.36/x
  3. Step 3: Cross multiply
    357,439.92x = 493,267.68 × 196,305.36
  4. Step 4: Simplify right side
    357,439.92x = 96,831,089,498.76
  5. Step 5: Solve for x
    x = 96,831,089,498.76/357,439.92
  6. Step 6: Final answer
    x = 270,901.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.